EP 0626717 A1 19941130 - A color cathode ray tube.
Title (en)
A color cathode ray tube.
Title (de)
Farbkathodenstrahlröhre.
Title (fr)
Tube à rayons cathodique couleur.
Publication
Application
Priority
JP 11698393 A 19930519
Abstract (en)
In the bulb of a color cathode ray tube, a flat glass panel having a substantially uniform thickness is used. The flat glass panel has a glass wall which extends in a substantially vertical direction from the flat glass panel. The glass wall adheres to a funnel, which includes a neck portion in which an electron gun is disposed, by means of a glass adhesive so as to form the bulb. A shadow mask on which a number of apertures are formed is fixed to a frame with an appropriate tensile stress and the frame is mounted on the glass wall. The shadow mask is disposed at a position close to the phosphor screen formed on the inner surface of the flat glass panel, facing thereto. On the outer surface of the flat glass panel, a resin film comprising at least one layer is attached by means of an adhesive. The resin film has appropriate mechanical, optical and electrical properties with which the flat glass panel should have. Thus, various properties of the flat glass panel can be controlled. As a result, it makes it possible to provide a high-performance color cathode ray tube using a thin flat glass panel which has a sufficiently large mechanical strength and desirable optical characteristics, capable of displaying images with high resolution and high color tone without distortion over the entire front surface. <IMAGE>
IPC 1-7
IPC 8 full level
H01J 29/86 (2006.01); H01J 29/87 (2006.01)
CPC (source: EP KR US)
H01J 29/07 (2013.01 - KR); H01J 29/868 (2013.01 - EP US); H01J 29/87 (2013.01 - EP US); H01J 2229/875 (2013.01 - EP US)
Citation (search report)
- [XY] EP 0396189 A1 19901107 - PHILIPS NV [NL]
- [X] EP 0255958 A2 19880217 - ZENITH ELECTRONICS CORP [US]
- [Y] EP 0298582 A1 19890111 - MITSUI TOATSU CHEMICALS [JP]
- [Y] US 4943862 A 19900724 - UESAKA KAZUO [JP], et al
- [Y] DE 1422249 A1 19681121 - TELEFUNKEN PATENT
- [A] US 5072301 A 19911210 - DZIEDZIC STANISLAW J [US]
- [A] US 4332329 A 19820601 - SCRIVEN ROGER L, et al
Designated contracting state (EPC)
DE FR GB IT NL
DOCDB simple family (publication)
EP 0626717 A1 19941130; EP 0626717 B1 19971210; CN 1053291 C 20000607; CN 1098816 A 19950215; DE 69407216 D1 19980122; DE 69407216 T2 19980416; KR 100225818 B1 19991015; KR 940027019 A 19941210; MY 110866 A 19990531; TW 417831 U 20010101; US 5532545 A 19960702
DOCDB simple family (application)
EP 94107622 A 19940517; CN 94105601 A 19940519; DE 69407216 T 19940517; KR 19940010705 A 19940517; MY PI19941272 A 19940518; TW 86202029 U 19940518; US 24357994 A 19940516